Smoke detector



FIG. 1 is an elevational view of a smoke detector showing my new design:

FIG. 2 is an elevational view thereof, 90° removed from FIG. 1;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a fragmentary view in partial section taken along line 5--5 ofFIG. 1.

The ornamental design for a smoke detector, as shown and described.